I'm getting an error message that the recentlyadded script had failed to run.
This happens every time I reboot. My install is a custom Ubuntu 10.04 64 bit with sources from the SVN PPA (Version XBMC-Pre 10.5 R31718) The problem can be seen in my xbmx.log around line number 359.

This is a problem with the 64-bits svn PPA. It looks like that fore some reason some libraries are 32-bits.
I guess the PPA maintaner(s) have to look into it because the problem isn't their if you compile it yourself.

Although Hither I have no idea how to help you, You guys do realize that the more you keep adding to it the slower its going to get at retrieving the information. Its like the whole reason that filemode doesn't just go and get the info if its available because it slows the listings right down having to fetch it. And the python way is worse still